U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Institute for Occupational Safety and Health

CDC Stacks Public Health Publications

The National Institute for Occupational Safety and Health (NIOSH) conducts research and makes recommendations for preventing work-related injuries, illnesses, and deaths. For more information, visit https://www.cdc.gov/niosh/index.html.

(61)
(489)
(1098)
(1281)
(1653)
(1924)
(2674)
(2174)
(2170)
(2199)
(2025)
(2294)
(2195)
(2187)
(1953)
(1953)
(1863)
(1812)
(1891)
(1851)
(2014)
(1833)
(1770)
(1792)
(1618)
(1440)
(1339)
(1049)
(1126)
(1101)
(945)
(1158)
(1313)
(1239)
(1325)
(1190)
(1403)
(1035)
(1171)
(1174)
(1210)
(1053)
(1184)
(1312)
(1467)
(1471)
(1458)
(1275)
(1229)
(1333)
(1434)
(1233)
(1062)
(1077)
(826)
(603)
(527)
(112)
(50)
(32)
(40)
(31)
(34)
(23)
(13)
(6)
(7)
(6)
(5)
(2)
(2)
(1)
(1)
(2)
(2)
(2)
(3)
(1)
(1)
(2)
(2)
(2)
(3)
(1)
(2)
(2)
(2)
(3)
(5)
(36)
0 of 90
(1)
(590)
(12)
(2)
(133)
(1)
(72)
(2)
(14)
(1)
(182)
(57)
(5)
(49)
(36)
(4)
(7)
(1092)
(18)
(463)
(5)
(80184)
(1)
(4)
0 of 24
(2)
(5)
(936)
(766)
(2)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(901)
(258)
(3)
(2)
(2)
(1)
(3)
(1)
(6)
(1)
(1)
(126)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(5)
(2)
(1)
(1)
(9)
(3)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(87)
(1)
(3)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(3)
(66)
(8)
(6)
(1)
(3)
(1)
(1)
(1)
(2)
(5)
(1)
(1)
(1)
(1)
(1)
(1)
(6205)
(2)
(2)
(1)
(4)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(7)
(2)
(242)
(1)
(28)
(5)
(1)
(2)
(1)
(4)
(1)
(1)
(1)
(1)
(3741)
(5)
(2)
(1)
(10)
(1)
(1)
(2)
(1)
(991)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(77)
(3)
(1)
(7)
(1)
(2)
(1)
(1)
(1)
(98)
(1)
(1)
(39)
(1)
(55)
(1)
(1)
(2)
(1)
(2765)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(5)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(2)
(2)
(1)
(3)
(1)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(5)
(2)
(1997)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(2891)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(38)
(2)
(1)
(2)
(1)
(2)
(2)
(1)
(1)
(166)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(405)
(1)
(2362)
(1086)
(4)
(1819)
(2)
(2)
(1)
(1)
(1)
(3)
(2)
(1)
(1)
(5)
(1)
(1)
(1)
(2)
(1)
(239)
(1)
(7)
(40)
(1)
(1)
(1)
(1583)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(4)
(4)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(3)
(1)
(1)
(1)
(4)
(1)
(1)
(6)
(1)
(764)
(1)
(3)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(300)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(3)
(3)
(1)
(1)
(1)
(5057)
(2)
(1)
(1)
(4195)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2693)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2162)
(1)
(255)
(1)
(1)
(1160)
(1)
(1)
(1)
(2)
(390)
(1)
(1)
(4)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(654)
(1)
(608)
(1)
(1)
(3)
(3)
(1)
(1)
(233)
(1222)
(2)
(599)
(3)
(1)
(4)
(2)
(1)
(4911)
(17)
(1)
(2)
(4)
(92)
(7)
(103)
(1)
(1)
(1)
(2)
(6)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(2830)
(1)
(135)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(16252)
(1)
(523)
(2)
(1)
(1507)
(3)
(2)
(5563)
(5883)
(26812)
(10210)
(23660)
(4371)
(3613)
(1)
(5685)
(7504)
(7289)
(5)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(9836)
(2)
(1)
(1)
(1)
(3)
(13)
(2)
(330)
(1)
(1)
(3)
(1)
(1)
(3)
(8)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(3)
(3)
(1)
(1)
(1)
(1)
(1)
(2)
(7)
(101)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(3)
(3)
(1)
(1)
(1)
(167)
(2)
(1)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(4)
(1)
(1)
(6)
(5)
(165)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(5)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(3)
(1)
(1)
(1)
(495)
(190)
(3)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(6)
(2)
(1)
(1)
(1)
(4)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(643)
(1)
(2647)
(1)
(1)
(1)
(1)
(3)
(2)
(1)
(1)
(18)
(1)
(1)
(989)
(1)
(1)
(1426)
(1)
(2)
(215)
(1)
(1)
(1)
(1899)
(2)
(1)
(1)
(3)
(2)
(3)
(1)
(5227)
(14)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(11783)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1412)
(1)
(1)
(1)
(81)
(2)
(2)
(1)
(308)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
0 of 747
(47)
(29)
(1)
(1)
(1)
(1)
(1)
(2)
(790)
(5)
(282)
(3551)
(810)
(2061)
(6)
(1)
(3850)
(587)
(1)
(17271)
(11)
(1)
(22)
(1)
(1)
(132)
(152)
(4777)
(31)
(3)
(4)
(3)
(16)
(4)
(1)
(3)
(24)
(16)
(16)
(50)
(559)
(4)
0 of 42
(1)
(1)
(1)
(48)
(57)
(125)
(24)
(24)
(8)
(86)
(153)
(75)
(19)
(11)
(1)
(663)
(1)
(44)
(19)
(29)
(1)
(86)
(44)
(29)
(2539)
(1)
(6)
(21)
(1179)
(15)
(122)
(14)
(31)
(1)
(633)
(4)
(10)
(3)
(20)
(2811)
(38)
(174)
(7)
(8)
(4)
(2575)
(81)
(5)
(4)
(154)
(2179)
(239)
(4)
(108)
(32)
(198)
(182)
(1)
(1)
(221)
(221)
(8)
(61)
(2)
(1)
(117)
0 of 66
(68)
(6)
(1262)
(9)
(5)
(5412)
(6234)
(4)
(9052)
(7)
(19)
(15)
(44)
(32)
(38)
(27)
(74)
(216)
(4)
(160)
(75)
(6)
(27)
(6)
(109)
(5)
(742)
(26)
(12)
(6)
(2142)
(52)
(1952)
(1987)
(12)
(4553)
(9)
(62)
(328)
(7)
(747)
(7)
(5250)
(1305)
(2564)
(7)
(52)
(10)
(21)
(246)
(169)
(36)
(10)
(34)
(276)
(23)
(402)
(34)
(24)
(164)
(66)
(52)
(6)
(16)
(55)
(157)
(11)
(39)
(170)
(3236)
(60)
(4)
(17)
(81)
(5)
(225)
(157)
(41)
(88)
(5)
(238)
(4)
(4)
(265)
(15)
(993)
(5)
(1267)
(1277)
(39)
(113)
(4)
(4)
(256)
(12)
(2026)
(53)
(25)
(7)
(6)
(4)
(4)
(227)
(202)
(1875)
(6)
(208)
(4)
(14)
(26)
(4)
(6)
(233)
(116)
(23)
(547)
(362)
(371)
(6)
(153)
(116)
(19)
(1256)
(1300)
(246)
(10)
(20)
(1740)
(216)
(143)
(94)
(69)
(356)
(11)
(5)
(4)
(20)
(23)
(63)
(6)
(6)
(4)
(61)
(4)
(219)
(64)
(190)
(41)
(190)
(4)
(35)
(12)
(74)
(4)
(32)
(11)
(127)
(9)
(248)
(5)
(5)
(2131)
(1570)
(4)
(1924)
(7)
(555)
(66)
(29)
(70)
(52)
(418)
(4)
(28)
(96)
(5)
(4)
(37)
(7)
(73)
(2815)
(498)
(25)
(12)
(29)
(115)
(253)
(7)
(6)
(10)
(64)
(27)
(339)
(21)
(282)
(151)
(261)
(4)
(320)
(5)
(109)
(62)
(3901)
(3531)
(49)
(25)
(4)
(39)
(800)
(90)
(4)
(53)
(210)
(12)
(167)
(1843)
(144)
(163)
(262)
(4)
(540)
(391)
(4475)
(535)
(5)
(45)
(214)
(26)
(78)
(9)
(109)
(51)
(70)
(32)
(160)
(4)
(22)
(13)
(4)
(31)
(4)
(479)
(25)
(4)
(52)
(7)
(69)
(8)
(195)
(521)
(172)
(172)
(5)
(8)
(4)
(10)
(321)
(18)
(6)
(587)
(2002)
(19)
(165)
(5)
(673)
(44)
(33)
(34)
(73)
(683)
(4)
(303)
(362)
(311)
(85)
(4)
(327)
(39)
(7)
(8)
(33)
(4)
(50)
(251)
(4)
(186)
(4)
(5)
(34)
(34)
(56)
(12)
(8)
(10)
(173)
(7017)
(25)
(640)
(8)
(20)
(8)
(25)
(336)
(2520)
(5)
(44)
(404)
(731)
(1104)
(8)
(26)
(60)
(206)
(4)
(87)
(46)
(16)
(887)
(5)
(2357)
(5)
(370)
(6)
(49)
(396)
(52)
(312)
(1071)
(23)
(1992)
(480)
(4869)
(5)
(1378)
(7)
(7027)
(16)
(1647)
(5)
(7)
(530)
(9)
(8)
(5487)
(5)
(30)
(117)
(9)
(6)
(14)
(26)
(2422)
(47)
(64)
(13)
(37)
(4)
(72)
(5)
(13)
(5)
(8)
(24)
(85)
(4)
(4)
(4)
(861)
(186)
(6)
(7)
(473)
(111)
(254)
(18)
(772)
(2419)
(4)
(8)
(693)
(21)
(24)
(13)
(7)
(370)
(39)
(67)
(349)
(284)
(4)
(15)
(2020)
(1450)
(123)
(34)
(22)
(56)
(4)
(7)
(42)
(20)
(27)
(8)
(4)
(4)
(402)
(103)
(49)
(455)
(588)
(10)
(626)
(349)
(4)
(166)
(11)
(6)
(304)
(29)
(665)
(122)
(21)
(15)
(9)
(5)
(4)
(4)
(1216)
(43)
(653)
(212)
(5)
(57)
(139)
(75)
(65)
(18)
(116)
(6)
(16)
(4)
(4)
(6891)
(56)
(54)
(10)
(332)
(2465)
(16)
(14)
(10)
(3456)
(16)
(14)
(1501)
(5)
(5)
(7)
(11)
(8)
(171)
(945)
(1219)
(1252)
(4)
(4)
(4)
(48)
(574)
(5)
(6)
(519)
(897)
(32)
(22)
(5)
(4)
(202)
(38)
(12)
(42)
(96)
(7)
(58)
(61)
(83)
(9)
(154)
(11)
(7)
(244)
(953)
(58)
(17)
(31)
(343)
(507)
(6)
(1191)
(12)
(23)
(10)
(6)
(15)
(45)
(5)
(1613)
(4)
(7)
(32)
(1474)
(4)
(4)
(17)
(20)
(4)
(21)
(5)
(14)
(56)
(20)
(4)
(34)
(20)
(8)
(9)
(123)
(38)
(531)
(9)
(5)
(59)
(1164)
(77)
(5)
(1529)
(5)
(4)
(75)
(77)
(7)
(1403)
(418)
(6)
(134)
(5484)
(49)
(7)
(687)
(1145)
(370)
(6)
(196)
(5)
(233)
(345)
(365)
(9)
(75)
(8)
(5)
(49)
(5414)
(3941)
(4)
(8)
(9)
(60)
(4)
(4)
(131)
(8)
(21)
(124)
(4)
(363)
(10)
(242)
(4726)
(18)
(26)
(102)
(11)
(160)
(18)
(31)
(28)
(41)
(2680)
(32)
(379)
(2864)
(208)
(4)
(2739)
(842)
(1058)
(8)
(31)
(62)
(10)
(431)
(23)
(12)
(20)
(6)
(39)
(6)
(4)
(26)
(12)
(1110)
(4)
(9)
(7)
(29)
(791)
(19)
(8)
(10040)
(4)
(111)
(11)
(4)
(4)
(911)
(8)
(3895)
(6)
(9)
(79)
(7)
(4)
(3245)
(5)
(3340)
(351)
(66)
(50)
(28)
(21)
(9)
(15)
(38)
(44)
(5)
(16)
(11)
(7)
(205)
(3259)
(16)
(3286)
(861)
(127)
(211)
(84)
(174)
(66)
(55)
(41)
(74)
(171)
(40)
(111)
(5)
(40)
(24)
(2258)
(1590)
(5)
(7)
(6)
(12)
(172)
(27)
(5)
(197)
(122)
(51)
(8)
(4)
(6)
(1263)
(7)
(22)
(9714)
(41)
(38)
(28)
(80123)
(20)
(1144)
(8)
(5)
(4)
(8)
(14)
(6)
(6)
(307)
(38)
(5)
(313)
(4)
(4)
(127)
(8)
(131)
(124)
(628)
(95)
(7)
(82)
(11)
(6)
(4999)
(385)
(4)
(7)
(29)
(41)
(6488)
(5)
(10)
(218)
(36)
(5)
(102)
(156)
(4)
(15)
(89)
(52)
(31)
(93)
(6)
(4)
(8)
(6)
(456)
(29)
(76)
(11)
(4)
(5)
(7)
(12)
(738)
(9)
(178)
(518)
(202)
(10)
(4)
(40)
(56)
(21)
(49)
(8)
(8)
(4)
(14)
(31)
(28)
(50)
(1379)
(581)
(11)
(11)
(4)
(716)
(229)
(61)
(15)
(4)
(9)
(4)
(37)
(12)
(1366)
(34)
(1665)
(4)
(15)
(6)
(14)
(4)
(5)
(35)
(18)
(33)
(5)
(361)
(420)
(15)
(1371)
(1340)
(132)
(272)
(165)
(164)
(13)
(11)
(447)
(11)
(187)
(43)
(78)
(17)
(7)
(6)
(108)
(20)
(18)
(5)
(21)
(4)
(5)
(6)
(7)
(46)
(5)
(6)
(4)
(793)
(384)
(2160)
(7889)
(7249)
(8)
(8)
(5)
(7985)
(6327)
(7)
(6)
(191)
(6)
(79841)
(4846)
(12)
(9)
(7)
(56)
(4)
(5)
(4)
(79)
(1504)
(152)
(846)
(56)
(1160)
(6)
(538)
(220)
(8)
(4)
(83)
(1711)
(115)
(61)
(2399)
(390)
(860)
(7)
(748)
(623)
(296)
(381)
(6)
(990)
(16)
(13)
(27)
(1154)
(2144)
(34)
(9)
(183)
(89)
(18)
(11)
(5459)
(15)
(5)
(4)
(4)
(29)
(11)
(4)
(1629)
(125)
(4)
(166)
(4)
(180)
(146)
(51)
(63)
(166)
(52)
(35)
(4)
(106)
(3241)
(5)
(8)
(32)
(7)
(14)
(840)
(205)
(37)
(406)
(10)
(8)
(15)
(19)
(23)
(100)
(4)
(760)
(262)
(10)
(1848)
(32)
(4)
(5)
(783)
(7)
(62)
(44)
(110)
(4)
(30)
(133)
(32)
(16)
(4)
(138)
(9)
(16)
(680)
(906)
(1339)
(22)
(12)
(4)
(4)
(25)
(50)
(8)
(934)
(3138)
(4)
(115)
(722)
(54)
(454)
(6)
(596)
(7)
(7)
(31)
(66)
(6)
(306)
(62)
(23)
(31)
(359)
(5)
(124)
(4)
(4)
(709)
(4)
(98)
(3093)
(313)
(8)
(17)
(19)
(4)
(5)
(259)
(9203)
(19)
(11)
(4)
(47)
(121)
(13)
(4)
(7)
(88)
(15)
(7)
0 of 1000
(76)
(64)
(38)
(49)
(38)
(51)
(50)
(113)
(79)
(93)
(61)
(38)
(46)
(36)
(51)
(107)
(246)
(56)
(60)
(82)
(277)
(86)
(106)
(43)
(57)
(135)
(48)
(126)
(37)
(44)
(73)
(42)
(44)
(72)
(38)
(98)
(39)
(226)
(42)
(38)
(69)
(71)
(64)
(122)
(54)
(77)
(62)
(37)
(151)
(142)
(52)
(51)
(43)
(63)
(68)
(36)
(49)
(70)
(50)
(52)
(45)
(61)
(173)
(63)
(39)
(59)
(38)
(88)
(41)
(39)
(69)
(60)
(50)
(45)
(54)
(55)
(38)
(105)
(123)
(43)
(59)
(69)
(53)
(80)
(69)
(53)
(42)
(80)
(58)
(147)
(43)
(45)
(99)
(37)
(46)
(47)
(88)
(92)
(37)
(45)
(85)
(78)
(37)
(37)
(55)
(38)
(66)
(44)
(55)
(84)
(45)
(59)
(82)
(159)
(62)
(42)
(129)
(84)
(40)
(93)
(61)
(108)
(70)
(47)
(76)
(60)
(177)
(36)
(44)
(38)
(40)
(99)
(43)
(60)
(73)
(68)
(926)
(88)
(48)
(39)
(45)
(189)
(47)
(36)
(61)
(36)
(60)
(129)
(101)
(71)
(72)
(39)
(147)
(39)
(88)
(37)
(75)
(41)
(43)
(108)
(37)
(39)
(47)
(249)
(59)
(77)
(124)
(36)
(41)
(93)
(44)
(41)
(41)
(57)
(140)
(66)
(45)
(134)
(59)
(55)
(49)
(58)
(64)
(38)
(48)
(37)
(47)
(56)
(144)
(46)
(72)
(38)
(38)
(55)
(72)
(139)
(37)
(103)
(82)
(49)
(117)
(43)
(87)
(84)
(38)
(36)
(52)
(82)
(42)
(42)
(51)
(41)
(47)
(44)
(58)
(41)
(79)
(47)
(52)
(53)
(66)
(170)
(48)
(39)
(157)
(82)
(49)
(37)
(46)
(61)
(98)
(59)
(126)
(41)
(80)
(71)
(224)
(100)
(51)
(122)
(41)
(39)
(53)
(42)
(47)
(37)
(40)
(73)
(84)
(140)
(44)
(56)
(57)
(171)
(38)
(45)
(42)
(167)
(40)
(48)
(36)
(76)
(119)
(71)
(39)
(86)
(58)
(41)
(39)
(55)
(69)
(55)
(56)
(213)
(155)
(40)
(59)
(75)
(84)
(41)
(52)
(88)
(83)
(38)
(43)
(87)
(85)
(56)
(54)
(65)
(47)
(56)
(62)
(81)
(208)
(49)
(73)
(61)
(47)
(36)
(183)
(38)
(45)
(45)
(105)
(43)
(82)
(93)
(44)
(85)
(40)
(46)
(62)
(53)
(48)
(44)
(97)
(39)
(65)
(56)
(49)
(69)
(43)
(147)
(44)
(42)
(46)
(54)
(45)
(125)
(39)
(60)
(74)
(199)
(85)
(250)
(81)
(87)
(37)
(256)
(97)
(78)
(65)
(175)
(92)
(37)
(78)
(55)
(84)
(44)
(62)
(60)
(112)
(37)
(36)
(134)
(63)
(44)
(77)
(252)
(38)
(66)
(40)
(89)
(36)
(117)
(56)
(37)
(108)
(78)
(156)
(68)
(39)
(196)
(43)
(86)
(59)
(46)
(62)
(54)
(38)
(76)
(49)
(61)
(44)
(88)
(49)
(51)
(51)
(43)
(97)
(49)
(42)
(93)
(121)
(109)
(46)
(165)
(47)
(72)
(63)
(92)
(48)
(83)
(125)
(44)
(43)
(102)
(45)
(44)
(56)
(38)
(63)
(94)
(44)
(75)
(78)
(36)
(95)
(51)
(38)
(82)
(209)
(65)
(59)
(77)
(37)
(108)
(240)
(51)
(44)
(104)
(67)
(55)
(48)
(46)
(45)
(53)
(47)
(39)
(82)
(49)
(47)
(49)
(54)
(38)
(59)
(63)
(71)
(41)
(70)
(92)
(159)
(45)
(56)
(71)
(67)
(61)
(78)
(54)
(59)
(51)
(36)
(36)
(106)
(37)
(63)
(250)
(80)
(39)
(40)
(49)
(40)
(42)
(98)
(40)
(106)
(46)
(91)
(131)
(39)
(91)
(55)
(73)
(51)
(44)
(69)
(37)
(82)
(44)
(93)
(155)
(40)
(75)
(42)
(55)
(54)
(39)
(61)
(43)
(62)
(59)
(60)
(84)
(177)
(45)
(120)
(45)
(235)
(60)
(67)
(94)
(38)
(79)
(71)
(87)
(63)
(70)
(96)
(71)
(68)
(56)
(44)
(122)
(101)
(44)
(55)
(68)
(49)
(75)
(47)
(44)
(106)
(56)
(57)
(46)
(160)
(45)
(76)
(44)
(40)
(59)
(46)
(68)
(37)
(52)
(55)
(44)
(37)
(40)
(58)
(64)
(42)
(49)
(116)
(63)
(127)
(48)
(54)
(88)
(79)
(45)
(76)
(103)
(59)
(54)
(37)
(80)
(84)
(45)
(70)
(63)
(46)
(58)
(40)
(108)
(53)
(102)
(78)
(55)
(177)
(40)
(38)
(114)
(108)
(70)
(61)
(40)
(49)
(155)
(96)
(95)
(37)
(90)
(47)
(37)
(61)
(97)
(38)
(65)
(67)
(84)
(51)
(48)
(201)
(48)
(44)
(68)
(81)
(54)
(37)
(45)
(37)
(52)
(187)
(44)
(41)
(104)
(41)
(51)
(85)
(58)
(40)
(44)
(41)
(59)
(171)
(42)
(37)
(68)
(86)
(43)
(46)
(52)
(40)
(54)
(43)
(50)
(38)
(38)
(91)
(43)
(43)
(49)
(122)
(53)
(39)
(47)
(56)
(152)
(44)
(74)
(262)
(47)
(49)
(57)
(56)
(217)
(144)
(45)
(130)
(164)
(42)
(45)
(98)
(68)
(39)
(48)
(65)
(41)
(38)
(72)
(134)
(63)
(37)
(58)
(65)
(51)
(45)
(155)
(49)
(69)
(122)
(53)
(79)
(148)
(41)
(52)
(51)
(49)
(39)
(105)
(37)
(37)
(41)
(93)
(46)
(162)
(40)
(43)
(166)
(60)
(152)
(58)
(119)
(38)
(40)
(101)
(58)
(48)
(49)
(41)
(111)
(61)
(71)
(44)
(46)
(43)
(42)
(41)
(151)
(58)
(42)
(42)
(64)
(84)
(53)
(110)
(53)
(43)
(78)
(103)
(43)
(109)
(59)
(132)
(67)
(54)
(53)
(96)
(46)
(119)
(78)
(68)
(47)
(222)
(39)
(57)
(40)
(59)
(172)
(52)
(67)
(92)
(57)
(272)
(43)
(43)
(38)
(99)
(37)
(40)
(90)
(82)
(85)
(43)
(92)
(39)
(168)
(68)
(99)
(51)
(68)
(65)
(49)
(78)
(125)
(124)
(37)
(71)
(52)
(39)
(40)
(71)
(68)
(45)
(89)
(155)
(48)
(288)
(70)
(40)
(53)
(53)
(50)
(189)
(57)
(53)
(114)
(40)
(42)
(37)
(46)
(43)
(67)
(44)
(95)
(227)
(42)
(79)
(39)
(227)
(71)
(161)
(42)
(82)
(49)
(87)
(55)
(95)
(62)
(102)
(113)
(50)
(78)
(39)
(43)
(65)
(44)
(45)
(122)
(51)
(108)
(54)
(55)
(46)
(40)
(40)
(55)
(51)
(79)
(90)
(58)
(52)
(52)
(37)
(50)
(95)
(95)
(59)
(220)
(226)
(38)
(52)
(170)
(37)
(62)
(70)
(43)
(37)
(92)
(156)
(55)
(46)
(49)
(56)
(52)
(89)
(62)
(42)
(60)
(58)
(96)
(53)
(43)
(55)
(59)
(86)
(92)
(40)
(40)
(75)
(104)
(234)
(99)
(55)
(61)
(101)
(71)
(55)
(54)
(69)
(103)
(107)
(39)
(37)
(121)
(61)
(85)
(69)
(39)
(58)
(61)
(289)
(42)
(59)
(42)
(72)
(194)
(115)
(86)
(105)
(112)
(37)
(59)
(70)
(81)
(46)
(55)
(88)
(189)
(41)
(41)
(118)
(59)
(51)
(63)
(50)
(71)
(43)
(48)
(137)
(84)
(50)
(48)
(85)
(38)
(103)
(68)
(68)
(51)
(134)
(37)
(128)
(59)
(40)
(108)
(75)
(48)
(60)
(45)
(73)
(47)
(106)
(63)
(46)
(59)
(45)
(45)
(180)
(85)
(82)
(38)
(58)
(47)
(40)
(76)
(54)
(61)
(80)
(45)
(42)
(50)
(71)
(99)
(87)
(97)
(119)
(64)
(54)
(49)
(39)
(64)
(43)
(98)
(99)
(51)
(40)
(53)
(45)
(46)
(59)
(50)
(137)
(80)
(38)
(43)
(82)
(71)
(54)
0 of 1000
(1)
(2)
(1)
(1)
(11)
(1)
(3)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(64)
(1)
(65)
(6)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(7)
(5)
(1)
(2)
(1)
(1)
(3)
(1)
(69)
(85)
(2)
(125)
(117)
(270)
(1)
(1)
(55)
(1)
(7)
(1)
(1)
(1)
(3)
(2)
(1)
(1)
(1)
(1)
(1)
(6)
(1)
(2)
(1)
(21)
(1)
(1)
(1)
(1)
(2)
(67)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(9)
(1)
(1)
(3)
(2)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(4)
(2)
(1)
(1)
(1)
(49)
(1)
(1)
(7)
(3)
(5)
(1)
(1)
(5)
(3)
(1)
(1)
(1)
(1)
(1)
(2)
(57)
(48)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(4)
(15)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(605)
(1)
(1)
(2)
(12)
(77)
(52)
(1)
(1)
(8)
(2)
(8)
(35)
(9)
(2)
(1)
(4)
(1)
(1)
(1)
(6)
(5)
(105)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(1)
(31)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(31)
(12)
(2)
(2)
(7)
(1)
(3)
(1)
(19)
(8)
(1)
(1)
(1)
(1)
(4)
(2)
(4)
(1)
(1)
(1)
(1)
(20)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(14)
(14)
(5)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(220)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(5)
(1)
(3)
(23)
(1)
(1)
(1)
(2)
(2)
(2)
(134)
(1)
(1)
(1)
(2)
(2)
(1)
(230)
(1)
(1)
(11)
(1)
(2)
(13)
(2)
(1)
(1)
(1)
(29)
(2)
(21)
(21)
(1)
(1)
(4)
(246)
(52)
(1)
(1)
(1)
(217)
(1)
(1)
(1)
(1)
(2)
(1)
(5)
(3)
(1)
(1)
(228)
(49)
(53)
(1)
(210)
(1)
(187)
(2)
(184)
(47)
(47)
(1)
(1)
(4)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(35)
(1)
(1)
(4)
(1)
(1)
(1)
(1)
(1)
(2)
(3)
(1)
(1)
(1)
(15)
(1)
(1)
(1)
(1)
(6)
(4)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(53)
(1)
(1)
(3)
(14)
(8)
(1)
(1)
(1)
(1)
(1)
(1)
(8887)
(2)
(1)
(4)
(18)
(1)
(1)
(47)
(8)
(8)
(2)
(3)
(1)
(1)
(1)
(35)
(3)
(1)
(234)
(2)
(1)
(1)
(2)
(2)
(1)
(1)
(1)
(1)
(6)
(22)
(23)
(3)
(9)
(1)
(1)
(1)
(7)
(1)
(1)
(1)
(1)
(315)
(2)
(739)
(1)
(2)
(2)
(1)
(1)
(1)
(8)
(1)
(3)
(19)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(110)
(1)
(2)
(36)
(2)
(1)
(4)
(6)
(1)
(4)
(124)
(13)
(3)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(17)
(1)
(2)
(1)
(1)
(1)
(7)
(7)
(1)
(1)
(33)
(59)
(18)
(77)
(29)
(1)
(9)
(1)
(1)
(24)
(3)
(2)
(1)
(1)
(1)
(16)
(24)
(1)
(1)
(186)
(211)
(30)
(30)
(32)
(65)
(1)
(62)
(3)
(3)
(1)
(1)
(6)
(10)
(4)
(1)
(1)
(10)
(1)
(1)
(1)
(27)
(3)
(3)
(11)
(52)
(52)
(52)
(1)
(1)
(1)
(1)
(1)
(150)
(41)
(38)
(8)
(8)
(2)
(1)
(1)
(5)
(1)
(1)
(1)
(8)
(1)
(5)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(6)
(3)
(3)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(25)
(1)
(1)
(25)
(1)
(3)
(13)
(15)
(1)
(1)
(2)
(2)
(2)
(1)
(1)
(1)
(48)
(1)
(4)
(1)
(4)
(1)
(1125)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(9)
(1)
(3)
(1)
(1)
(4)
(2)
(1)
(1)
(1)
(1)
(1)
(40)
(7)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(12)
(1)
(4)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(3)
(1)
(20)
(1)
(1)
(10)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(38)
(94)
(1)
(283)
(1)
(1)
(1)
(4)
(5)
(1)
(1)
(1)
(1)
(2)
(3)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(84)
(7)
(1)
(19)
(4)
(1)
(2)
(1)
(1)
(1)
(1)
(14)
(7)
(1)
(2)
(715)
(127)
(49)
(47)
(1)
(1)
(1)
(2)
(1)
(34)
(34)
(1)
(34)
(12)
(106)
(1)
(106)
(2)
(14)
(2)
(2)
(5)
(1)
(1)
(1)
(1)
(1)
(45)
(45)
(1)
(1)
0 of 742
(1)
(205)
(21)
(1)
(114)
(129)
(679)
(92)
(186)
(66)
(1)
(185)
(1)
(8)
(168)
(2484)
(1015)
(12)
(1)
(62)
(77)
(5)
(256)
(820)
(1)
(1)
(1)
(123)
(1)
(1523)
(667)
(2372)
(260)
(1)
(8015)
(465)
(1)
(3176)
(6)
(206)
(355)
(33)
(1668)
(237)
(169)
(3)
(21)
(81)
(5277)
(1)
(1)
(5)
(51)
(116)
(4)
(27)
(96)
(2)
(1040)
(5)
(27)
(13)
(1)
(727)
(5)
(4)
(845)
(3)
(29)
(1730)
(2)
(11)
(64)
(2052)
(7)
(5)
(688)
(10)
(1)
(1)
(237)
(46)
(13)
(139)
(3)
(1)
(2)
(1)
(1176)
(6)
(2)
(1)
(5)
(3956)
(1932)
(64)
(428)
(754)
(269)
(15)
(413)
(7)
(301)
(602)
(530)
(2)
(1125)
(12)
(384)
(8)
(49)
(1246)
(1)
(199)
(37)
(91)
(1)
0 of 117
(2)
(2)
(2)
(2)
(2)
(4)
(590)
(2)
(5)
(4)
(2)
(2)
(6)
(1)
(4)
(8)
(4)
(35)
(4)
(2)
(2)
(109)
(4)
(910)
(3)
(3)
(3)
(3)
(19)
(4)
(6)
(3)
(422)
(7)
(7)
(3)
(2)
(3)
(4)
(3)
(2)
(2)
(3)
(2)
(77)
(2)
(2)
(68)
(2)
(2)
(2)
(2)
(185)
(4)
(2)
(19)
(2)
(2)
(4)
(2)
(36)
(2)
(28)
(2)
(4)
(229)
(2)
(2)
(2)
(2)
(2)
(29)
(2)
(20)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(39)
(1)
(28)
(2)
(2)
(2)
(3)
(2)
(2)
(3)
(2)
(57)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(862)
(2)
(2)
(2)
(2)
(2)
(2)
(1)
(2)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(4)
(1)
(1)
(5)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(3)
(1)
(1)
(4)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(3)
(4)
(7)
(7)
(1)
(2)
(13)
(4)
(1)
(1)
(6)
(9)
(3)
(3)
(1)
(1)
(1)
(1)
(2)
(2)
(8)
(7)
(2)
(2)
(1)
(6)
(2)
(2)
(3)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(6)
(5)
(1)
(1)
(3)
(2)
(2)
(4)
(13)
(2)
(1)
(3)
(3)
(1)
(6)
(9)
(1)
(5)
(1)
(12)
(2)
(7)
(2)
(1)
(1)
(175)
(32)
(1)
(2)
(1)
(6)
(1)
(3)
(1)
(1)
(2)
(1)
(13)
(1)
(3)
(6)
(1)
(1)
(7)
(4)
(22)
(3)
(7)
(2)
(1)
(7)
(9)
(41)
(9)
(6)
(12)
(6)
(19)
(2)
(4)
(5)
(8)
(1)
(4)
(33)
(5)
(3)
(1)
(1)
(3)
(1)
(25)
(12)
(3)
(8)
(3)
(7)
(1)
(1)
(1)
(2)
(2)
(1)
(2)
(1)
(7)
(1)
(1)
(2)
(4)
(1)
(1)
(7)
(1)
(1)
(2)
(4)
(1)
(6)
(1)
(1)
(5)
(1)
(2)
(15)
(2)
(2)
(2)
(4)
(10)
(2)
(1)
(4)
(2)
(1)
(1)
(1)
(3)
(1)
(1)
(9)
(1)
(6)
(7)
(18)
(1)
(1)
(6)
(2)
(3)
(4)
(3)
(3)
(2)
(3)
(1)
(2)
(3)
(1)
(2)
(3)
(1)
(2)
(1)
(1)
(1)
(3)
(1)
(3)
(1)
(1)
(2)
(1)
(2)
(6)
(8)
(5)
(8)
(1)
(1)
(1)
(19)
(3)
(3)
(7)
(6)
(3)
(4)
(7)
(1)
(3)
(1)
(4)
(4)
(2)
(3)
(1)
(2)
(15)
(1)
(3)
(1)
(3)
(3)
(4)
(4)
(1)
(3)
(2)
(3)
(3)
(7)
(1)
(1)
(32)
(2)
(5)
(3)
(3)
(27)
(20)
(1)
(1)
(3)
(5)
(1)
(2)
(1)
(1)
(1)
(1)
(5)
(4)
(1)
(7)
(1)
(64)
(1)
(44)
(34)
(7)
(14)
(1)
(3)
(11)
(30)
(8)
(7)
(3)
(5)
(1)
(39)
(1)
(33)
(1)
(110)
(4)
(1)
(3)
(1)
(12)
(3)
(32)
(1)
(1)
(10)
(1)
(9)
(1)
(16)
(41)
(1)
(14)
(1)
(2)
(39)
(1)
(5)
(3)
(2)
(1)
(8)
(22)
(84)
(3)
(1)
(1)
(1)
(17)
(26)
(3)
(7)
(4)
(2)
(2)
(6)
(5)
(4)
(1)
(17)
(10)
(15)
(5)
(4)
(12)
(3)
(6)
(1)
(1)
(1)
(3)
(4)
(2)
(5)
(5)
(11)
(6)
(49)
(10)
(21)
(5)
(1)
(55)
(8)
(3)
(6)
(9)
(33)
(2)
(19)
(8)
(2)
(1)
(24)
(26)
(36)
(1)
(8)
(1)
(1)
(3)
(3)
(11)
(12)
(2)
(1)
(3)
(6)
(1)
(1)
(1)
(5)
(2)
(5)
(3)
(2)
(8)
(4)
(13)
(7)
(2)
(3)
(6)
(2)
(8)
(3)
(29)
(15)
(6)
(2)
(4)
(5)
(3)
(10)
(7)
(12)
(10)
(3)
(2)
(2)
(9)
(2)
(5)
(2)
(3)
(2)
(3)
(4)
(3)
(4)
(11)
(3)
(10)
(3)
(3)
(3)
(3)
(2)
(5)
(3)
(2)
(6)
(3)
(4)
(8)
(5)
(13)
(2)
(2)
(6)
(8)
(6)
(2)
(3)
(2)
(3)
(3)
(7)
(8)
(3)
(2)
(3)
(3)
(2)
(2)
(64)
(11)
(4)
(2)
(15)
(23)
(2)
(10)
(4)
(4)
(24)
(7)
(70)
(2)
(16)
(11)
(17)
(47)
(36)
(9)
(5)
(4)
(2)
(2)
(3)
(3)
(3)
(2)
(2)
(8)
(19)
(14)
(2)
(9)
(3)
(7)
(2)
(4)
(10)
(4)
(8)
(7)
(7)
(3)
(2)
(3)
(4)
(3)
(3)
(2)
(4)
(6)
(40)
(4)
(3)
(6)
(4)
(13)
(11)
(5)
(2)
(2)
(3)
(4)
(2)
(17)
(2)
(3)
(2)
(2)
(44)
(11)
(5)
(16)
(37)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(7)
(2)
(2)
(3)
(8)
(16)
(2)
(2)
(2)
(6)
(3)
(14)
(2)
(3)
(4)
(5)
(2)
(2)
(2)
(2)
(3)
(3)
(2)
(5)
(60)
(2)
(10)
(5)
(4)
(3)
(6)
(2)
(3)
(2)
(3)
(2)
(4)
(9)
(4)
(9)
(7)
(2)
(10)
(3)
(6)
(2)
(6)
(16)
(2)
(4)
(16)
(2)
(10)
(2)
(2)
(3)
(14)
(23)
(55)
(6)
(2)
(5)
(153)
(3)
(3)
(12)
(24)
(9)
(2)
(3)
(3)
(61)
(47)
(6)
(9)
(7)
(2)
(9)
(5)
(9)
(2)
(4)
(7)
(4)
(6)
(2)
(2)
(8)
(3)
(15)
(7)
(3)
(48)
(23)
(30)
(5)
(8)
(54)
(2)
(3)
(17)
(3)
(9)
(27)
(6)
(12)
(9)
(2)
(3)
(9)
(7)
(2)
(29)
(9)
(40)
(1)
(2)
(4)
(2)
(2)
(1)
(5)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(5)
(1)
(1)
(3)
(1)
(4)
(2)
(2)
(3)
(3)
(1)
(1)
(3)
(1)
(1)
(1)
(7)
(1)
(20)
(1)
(8)
(2)
(11)
(8)
(1)
(1)
(1)
(4)
(1)
(1)
(7)
(1)
(1)
(8)
(1)
(2)
(1)
(2)
(14)
(1)
(1)
(2)
(20)
(7)
(2)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(1)
(3)
(1)
(1)
(2)
(11)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(2)
(1)
(3)
(2)
(1)
(8)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(3)
(1)
(1)
(3)
(2)
(1)
(1)
(1)
(2)
(6)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(3)
(2)
(1)
(1)
(3)
(1)
(1)
(3)
(3)
(3)
(7)
(1)
(2)
(1)
(2)
(2)
(1)
(2)
(2)
(2)
(2)
(10)
(2)
(6)
(2)
(4)
(2)
(3)
(3)
(4)
(2)
(12)
(2)
(2)
(2)
(3)
(19)
(3)
(4)
(6)
(14)
(5)
(10)
(3)
(5)
(4)
(30)
(2)
(5)
(3)
(2)
(6)
(6)
(3)
(2)
(3)
(4)
(5)
(2)
(4)
(3)
(4)
(30)
(2)
(5)
(23)
(16)
(4)
(2)
(5)
(3)
(8)
(2)
(5)
(2)
(4)
(19)
(3)
0 of 1000
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(4)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(12)
(2)
(3)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(6)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(4)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(11)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(4)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(11)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(3)
(10)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(4)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(5)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(4)
(5)
(3)
(3)
(3)
(4)
(3)
(4)
(3)
(3)
(4)
(4)
(4)
(3104)
0 of 1000
(2678)
(2)
(24)
(30)
(1)
(4)
(1)
(2511)
(1)
(1)
(118)
(16)
(4)
(28)
(5)
(56)
(142)
(372)
(76)
(261)
(89)
(98)
(557)
(236)
(2)
(3)
(4)
(1)
(7)
(514)
(1289)
(10)
(1)
(2)
(1)
(8)
(4)
(2986)
(2181)
(7)
(1)
(13)
(7)
(8)
(176)
(204)
(3)
(2)
(4)
(181)
(1)
(587)
(1)
(2)
(43)
(935)
(18)
(2)
(765)
(1)
(1)
(7)
(69)
(43)
(138)
(14)
(659)
(542)
(26)
(143)
(85)
(39)
(48)
(61)
(15)
(44)
(25)
(7)
(1715)
(136)
(1)
(4)
(2)
(1)
(374)
(1)
(497)
(8)
(5)
(18)
(3)
(33)
(3)
(1)
(147)
(5)
(68)
(5)
(193)
(19)
0 of 100
(1)
(4)
(4)
(3)
(17)
(111)
(15)
(21)
(269)
(23)
(13)
(3)
(397)
(429)
(4)
(25)
(4)
(2)
(2)
(2)
(2)
(2)
(2)
(1)
(11)
(4)
(79)
(36)
(9)
(41)
(3)
(1)
(8)
(4)
(16)
(17)
(5)
(1)
(3)
(5)
(6)
(7)
(73)
(2)
(14)
(2)
(20)
(44)
(21)
(35)
(92)
(22)
(22)
(47)
(18)
(113)
(3)
(18)
(9)
(13)
(4)
(11)
(1)
(10)
(38)
(1)
(3)
(9)
(17)
(10)
(24)
(12)
(9)
(24)
(2)
(10)
0 of 76
(456)
(3)
(14)
(173)
(887)
(392)
(40)
(2812)
(618)
(2)
(239)
(44)
(100)
(121)
(55)
(281)
(7)
(103)
(207)
(19)
(110)
(1)
(96)
(100)
(824)
(160)
(215)
(218)
(229)
(3)
(258)
(41)
(15)
(30)
(4)
(75)
(511)
(44)
(27)
(74)
(113)
(35)
0 of 42
(1)
(634)
(5715)
(1)
(6)
(6)
(301)
(19)
(2)
(2)
(208)
(38)
(1749)
(16)
(2)
(1739)
(78)
(4)
(36)
(138)
(1)
(5)
(3)
(36)
(1)
(890)
(10)
(5926)
(1)
(406)
(1)
(15)
(4)
(10)
(400)
(1)
(2)
(1272)
(8)
(713)
(1)
(8391)
(3410)
(294)
(1761)
(1)
(4)
(1008)
(83)
(1)
(35)
(1)
(190)
(1)
(189)
(2)
(23)
(2)
(5)
(1)
(282)
(281)
(5)
(33775)
(2)
(15)
(299)
(28)
(2)
(5)
(1)
(4)
(2)
(3)
(4)
(18)
(4)
(6)
(1014)
(6)
(1)
(912)
(87)
(820)
(2)
(407)
(4)
(3)
(133)
(4)
(12)
(1)
(2)
(1)
(60)
(5)
(6759)
(42)
(3)
(5810)
(116)
(1)
(13)
(238)
(1)
(54)
(1)
(3)
(4)
(2)
(16)
(14)
(422)
(289)
(1)
(330)
(293)
(31)
(17)
(174)
(2)
(72)
(1)
0 of 123
(3057)
(917)
(3720)
(342)
(449)
(354)
(835)
(3806)
(139)
(526)
(659)
(228)
(308)
(1503)
(1268)
(1018)
(540)
(635)
(269)
(447)
(1267)
(608)
(311)
(1660)
(505)
(246)
(370)
(730)
(2353)
(138)
(1042)
(144)
(411)
(370)
(376)
(306)
(605)
(532)
(233)
(1336)
(232)
(209)
(639)
(170)
(1004)
(146)
(297)
(187)
(139)
(195)
(160)
(429)
(227)
(252)
(161)
(358)
(324)
(351)
(205)
(368)
(472)
(1187)
(411)
(1077)
(176)
(222)
(247)
(254)
(1386)
(145)
(1895)
(647)
(202)
(150)
(231)
(151)
(242)
(296)
(148)
(381)
(236)
(157)
(156)
(146)
(176)
(522)
(189)
(501)
(166)
(1356)
(211)
(183)
(154)
(309)
(146)
(165)
(151)
(209)
(1008)
(341)
(149)
(502)
(187)
(248)
(144)
(1205)
(158)
(147)
(1273)
(277)
(138)
(159)
(156)
(241)
(140)
(140)
(237)
(195)
(297)
(255)
(612)
(184)
(167)
(1398)
(512)
(217)
(178)
(140)
(171)
(462)
(347)
(1037)
(186)
(456)
(264)
(294)
(422)
(594)
(403)
(177)
(356)
(158)
(484)
(257)
(413)
(534)
(199)
(141)
(143)
(376)
(673)
(198)
(539)
(319)
(385)
(196)
(212)
(694)
(383)
(230)
(259)
(301)
(1264)
(266)
(184)
(248)
(171)
(142)
(164)
(139)
(170)
(179)
(352)
(514)
(1340)
(183)
(150)
(248)
(149)
(459)
(403)
(289)
(740)
(154)
(162)
(207)
(147)
(349)
(234)
(329)
(235)
(241)
(1455)
(556)
(1443)
(294)
(303)
(1645)
(251)
(708)
(141)
(864)
(381)
(1283)
(151)
(157)
(189)
(511)
(430)
(197)
(208)
(341)
(255)
(143)
(248)
(262)
(182)
(145)
(166)
(170)
(1292)
(605)
(182)
(367)
(152)
(159)
(263)
(320)
(245)
(146)
(163)
(407)
(158)
(263)
(759)
(178)
(224)
(151)
(151)
(630)
(297)
(252)
(627)
(412)
(257)
(600)
(231)
(1088)
(461)
(562)
(228)
(162)
(530)
(1122)
(1944)
(172)
(446)
(228)
(212)
(242)
(238)
(266)
(922)
(230)
(207)
(503)
(181)
(193)
(165)
(150)
(790)
(293)
(182)
(147)
(390)
(292)
(283)
(962)
(316)
(395)
(167)
(831)
(539)
(417)
(269)
(252)
(255)
(773)
(206)
(144)
(188)
(170)
(176)
(200)
(4739)
(225)
(887)
(909)
(643)
(539)
(202)
(382)
(311)
(306)
(319)
(2117)
(203)
(292)
(170)
(238)
(220)
(2582)
(3844)
(1020)
(820)
(1345)
(176)
(2013)
(154)
(200)
(206)
(149)
(235)
(258)
(561)
(668)
(1774)
(667)
(1279)
(535)
(325)
(208)
(676)
(495)
(238)
(897)
(373)
(221)
(222)
(204)
(670)
(210)
(251)
(192)
(254)
(145)
(142)
(173)
(169)
(358)
(239)
(192)
(158)
(202)
(407)
(396)
(169)
(531)
(310)
(202)
(738)
(333)
(159)
(383)
(233)
(422)
(165)
(360)
(265)
(400)
(306)
(251)
(188)
(189)
(312)
(230)
(1053)
(773)
(184)
(159)
(195)
(376)
(217)
(1794)
(488)
(491)
(617)
(437)
(1096)
(1298)
(342)
(386)
(256)
(176)
(790)
(502)
(218)
(381)
(668)
(140)
(288)
(972)
(218)
(220)
(566)
(197)
(286)
(294)
(214)
(157)
(172)
(511)
(300)
(206)
(175)
(315)
(154)
(198)
(174)
(279)
(244)
(475)
(160)
(200)
(199)
(164)
(245)
(4694)
(214)
(153)
(156)
(226)
(194)
(227)
(428)
(204)
(576)
(142)
(248)
(442)
(215)
(358)
(473)
(506)
(159)
(188)
(202)
(262)
(171)
(252)
(949)
(215)
(181)
(195)
(307)
(180)
(395)
(444)
(149)
(215)
(314)
(565)
(406)
(348)
(655)
(150)
(7043)
(4694)
(2132)
(297)
(564)
(427)
(169)
(184)
(248)
(282)
(307)
(596)
(169)
(138)
(223)
(2391)
(323)
(1058)
(160)
(815)
(418)
(321)
(157)
(313)
(228)
(246)
(140)
(207)
(158)
(213)
(139)
(167)
(162)
(278)
(254)
(295)
(156)
(753)
(516)
(436)
(780)
(1115)
(255)
(675)
(658)
(161)
(231)
(158)
(445)
(242)
(283)
(213)
(385)
(351)
(267)
(292)
(275)
(144)
(163)
(284)
(148)
(256)
(1140)
(256)
(391)
(180)
(148)
(257)
(310)
(162)
(465)
(539)
(201)
(524)
(170)
(267)
(255)
(147)
(212)
(197)
(256)
(2622)
(230)
(185)
(888)
(147)
(373)
(283)
(270)
(235)
(181)
(165)
(620)
(149)
(140)
(154)
(175)
(174)
(606)
(239)
(165)
(140)
(159)
(542)
(308)
(168)
(166)
(928)
(175)
(178)
(772)
(630)
(2585)
(225)
(996)
(160)
(2420)
(190)
(232)
(166)
(534)
(538)
(419)
(443)
(362)
(153)
(1054)
(1105)
(284)
(340)
(540)
(183)
(487)
(799)
(970)
(281)
(146)
(159)
(245)
(468)
(925)
(1528)
(755)
(272)
(456)
(142)
(317)
(346)
(1279)
(192)
(211)
(192)
(163)
(306)
(291)
(175)
(5912)
(793)
(163)
(1476)
(2180)
(1706)
(706)
(1626)
(154)
(690)
(198)
(237)
(691)
(511)
(348)
(184)
(356)
(205)
(797)
(560)
(155)
(360)
(681)
(665)
(3598)
(1954)
(1795)
(606)
(287)
(234)
(779)
(173)
(202)
(152)
(1285)
(192)
(396)
(464)
(326)
(259)
(139)
(138)
(334)
(207)
(510)
(297)
(172)
(337)
(151)
(647)
(197)
(147)
(432)
(603)
(783)
(1072)
(1668)
(368)
(441)
(468)
(567)
(342)
(153)
(147)
(212)
(180)
(168)
(176)
(165)
(382)
(139)
(330)
(788)
(244)
(139)
(2237)
(206)
(160)
(205)
(332)
(141)
(251)
(167)
(182)
(795)
(1882)
(254)
(936)
(770)
(395)
(258)
(203)
(146)
(141)
(160)
(198)
(403)
(161)
(180)
(451)
(264)
(178)
(284)
(640)
(359)
(217)
(286)
(501)
(206)
(145)
(297)
(595)
(192)
(153)
(288)
(158)
(200)
(235)
(334)
(212)
(151)
(149)
(268)
(888)
(158)
(795)
(489)
(214)
(251)
(205)
(157)
(321)
(889)
(1260)
(197)
(262)
(477)
(689)
(338)
(345)
(222)
(197)
(399)
(372)
(172)
(179)
(193)
(403)
(349)
(283)
(438)
(872)
(597)
(808)
(339)
(820)
(2764)
(189)
(141)
(149)
(456)
(284)
(152)
(886)
(238)
(1381)
(755)
(509)
(207)
(331)
(265)
(242)
(217)
(420)
(435)
(181)
(274)
(259)
(139)
(274)
(177)
(187)
(863)
(424)
(452)
(934)
(240)
(156)
(346)
(202)
(1075)
(500)
(749)
(2982)
(393)
(151)
(213)
(193)
(200)
(755)
(2266)
(3408)
(257)
(489)
(2350)
(256)
(171)
(154)
(241)
(372)
(233)
(177)
(1045)
(182)
(210)
(193)
(2894)
(310)
(2134)
(3339)
(1485)
(158)
(2408)
(1326)
(1082)
(215)
(1102)
(358)
(805)
(1383)
(448)
(348)
(325)
(1464)
(310)
(745)
(191)
(146)
(142)
(309)
(414)
(616)
(199)
(233)
(164)
(232)
(210)
(860)
(219)
(352)
(449)
(325)
(257)
(303)
(254)
(339)
(713)
(414)
(147)
(216)
(263)
(226)
(194)
(240)
(177)
(298)
(580)
(201)
(629)
(484)
(246)
(589)
(209)
(327)
(696)
(3486)
(1123)
(298)
(934)
(198)
(193)
(139)
(1813)
(156)
(1275)
(489)
(258)
(305)
(237)
(157)
(258)
(262)
(144)
(139)
(285)
(475)
(885)
(415)
(353)
(206)
(152)
(287)
(138)
(1270)
(633)
(624)
(3803)
(286)
(210)
(3632)
(928)
(329)
(459)
(593)
(244)
(433)
(160)
(451)
(1675)
(733)
(613)
(311)
(468)
(144)
(411)
(151)
(1270)
(240)
(199)
(904)
(208)
(375)
(245)
(318)
(163)
(146)
(178)
(183)
(265)
(233)
(222)
(159)
(139)
(179)
(224)
(184)
(314)
(336)
(162)
(2991)
(1921)
(1555)
(144)
(3037)
(255)
(1869)
(236)
(1775)
(3135)
(2060)
(2126)
(180)
(914)
(4162)
(946)
(371)
(196)
(472)
(173)
(506)
(1577)
(247)
(169)
(431)
(308)
(625)
(588)
(336)
0 of 1000
(1)
(1)
(1)
0 of 3
Showing 3461 - 3480 of 82972 results
  • Critical Clinical Events and Resilience Among Emergency Nurses in 3 Trauma HospitalBased Emergency Departments A CrossSectional Study
    Critical Clinical Events and Resilience Among Emergency Nurses in 3 Trauma Hospital-Based Emergency Departments: A Cross-Sectional Study
    Abu-Alhaija DM ;
    Gillespie GL
    2022/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Introduction: Emergency nurses experience occupational stressors resulting from exposures to critical clinical events. The purpose of this study was to identify the critical clinical events for emergency nurses serving 3 patient populations (general, adult, pediatric) and whether the resilience of these nurses differed by the patient population ser ...
  • Characterizing Mechanical Heterogeneity of Coal at NanotoMicro Scale Using Combined Nanoindentation and FESEMEDS
    Characterizing Mechanical Heterogeneity of Coal at Nano-to-Micro Scale Using Combined Nanoindentation and FESEM-EDS
    Liu A ;
    Liu B
    2022/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    The variations of mechanical properties of coals in nano-to-micro scale play vital roles in defining the coal deformative and failure behaviors with a wide range of engineering applications, including coal stimulation for gas recovery and/or CO2 sequestration in coal seams. Based on the assumption that the heterogeneity in the mechanical properties ...
  • Respirator Selection Guide for the Construction Industry Helping Construction Companies Understand the Basics of Respirator Selection
    Respirator Selection Guide for the Construction Industry: Helping Construction Companies Understand the Basics of Respirator Selection
    National Institute for Occupational Safety and Health
    2022/09/01 | NIOSH Numbered Publications
    This guide helps construction companies understand the basics of respirator selection. Choosing the right respirator for the job, and the hazard, is a vital part of protecting workers. For construction workers, examples of airborne hazards include contaminants like dust, mold, and chemical solvent vapors. The Occupational Safety and Health Administ ...
    Public Domain
  • Evaluation results from the Healthy Work Collaborative a crosssectoral capacity building partnership to address precarious employment
    Evaluation results from the Healthy Work Collaborative: a cross-sectoral capacity building partnership to address precarious employment.
    Bonney T ;
    Deb N
    2022/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Background: The COVID-19 pandemic has illuminated the profound health and safety risks of precariously employed workers, many of whom are disproportionately Latinx and Black. Precarious employment (PE) is a social determinant of health (SDOH) characterized by low wages, hazardous conditions, unstable work schedules, no termination protection, and f ...
  • Chronic Lower Back Pain in Aquaculture Clam Farmers Adoption and Feasibility of SelfManagement Strategies Introduced using a Rapid Prototype Participatory Ergonomic Approach
    Chronic Lower Back Pain in Aquaculture Clam Farmers: Adoption and Feasibility of Self-Management Strategies Introduced using a Rapid Prototype Participatory Ergonomic Approach
    Bishop, Mark ;
    Coffman, Ashleigh
    2022/09/01 | Int J Occup Saf Ergon 2022 Sep; 28(3):1829-1839 | National Institute for Occupational Safety and Health (NIOSH)
    Objectives. Lower back pain (LBP) is extremely prevalent in seafood harvesters who often have limited or no access to ergonomic consultation, occupational health support and rehabilitation services. This pilot study aimed to describe a participatory ergonomic approach and determine the feasibility and extent of adoption of self-management strategie ...
    Supporting Files
  • A Study of Respirable Silica in Underground Coal Mines Sources
    A Study of Respirable Silica in Underground Coal Mines: Sources
    Keles C ;
    Pokhrel N
    2022/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    An ongoing resurgence of occupational lung disease among coal miners in the United States has been linked to respirable crystalline silica (RCS). To better protect miners, a deeper understanding of key exposure factors is needed. As part of a larger investigation of RCS in 15 coal mines, this paper describes analysis of silica mass content in two t ...
  • Depressive Symptoms in Lung Transplant Recipients Trajectory and Association with Mortality and Allograft Dysfunction
    Depressive Symptoms in Lung Transplant Recipients: Trajectory and Association with Mortality and Allograft Dysfunction
    Blanc PD ;
    Gao Y
    2022/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Objective: Most studies observing an association between depressive symptoms following lung transplantation and mortality are limited to depressive symptom measurement at a single time point, unrelated to allograft function. We aimed to test the association of depressive symptoms over multiple assessments with allograft dysfunction and with mortali ...
  • NIOSH Hearing Loss Prevention Program 2022
    NIOSH Hearing Loss Prevention Program [2022]
    National Institute for Occupational Safety and Health
    2022/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    The Hearing Loss Prevention Program leads efforts to reduce the prevalence of occupational hearing loss. This snapshot shows recent accomplishments and upcoming work.
    Public Domain
  • Coexposure to Solvents and Noise as a Risk Factor for Hearing Loss in Agricultural Workers
    Coexposure to Solvents and Noise as a Risk Factor for Hearing Loss in Agricultural Workers
    Achutan, Chandran ;
    Beseler C
    2022/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Objective: This study addressed the relationship of hearing loss and coexposure to solvents and noise among farmers and ranchers in central United States. Methods: The surveillance study included surveys to stratified random samples of operations in 2018 and 2020 (n = 34,146), requesting information on injuries, illnesses, exposures, and preventive ...
  • Evaluation of Surgical N95 Respirators Covered with Combinations of Masks and Face Shield
    Evaluation of Surgical N95 Respirators Covered with Combinations of Masks and Face Shield
    Powell JB ;
    Quinn T
    2022/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    ABSTRACT: Limited availability of filtering facepiece respirators (FFRs) during extreme demand has prompted users to cover their N95 FFRs with another face covering to prevent surface contamination and extend its their useful life. PURPOSE: To evaluate the metabolic demands and internal breathing environments from covering an N95 with a surgical ma ...
    Public Domain
  • Reliability Analysis of ObservationBased Exposure Assessment Tools for the Upper Extremities A Systematic Review
    Reliability Analysis of Observation-Based Exposure Assessment Tools for the Upper Extremities: A Systematic Review
    Acosta-Sojo Y ;
    Gallagher S
    2022/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    (1) Background: The objectives of this systematic review were to (i) summarize the results of studies evaluating the reliability of observational ergonomics exposure assessment tools addressing exposure to physical risk factors associated with upper extremity musculoskeletal disorders (MSDs), and (ii) identify best practices for assessing the relia ...
  • NIOSH Center for Workers Compensation Studies 202209
    NIOSH Center for Workers’ Compensation Studies [2022-09]
    National Institute for Occupational Safety and Health
    2022/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    The Center for Workers' Compensation Studies uses workers' compensation data and systems to improve workplace safety and health. This snapshot shows recent accomplishments and upcoming work. The National Institute for Occupational Safety and Health (NIOSH) Center for Workers' Compensation Studies works with partners in the insurance industry, healt ...
    Public Domain
  • Exposure Contrasts of Pregnant Women During the Household Air Pollution Intervention Network Randomized Controlled Trial
    Exposure Contrasts of Pregnant Women During the Household Air Pollution Intervention Network Randomized Controlled Trial
    Balakrishnan K ;
    Campbell, David D.
    2022/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Background: Exposure to PM2.5 arising from solid fuel combustion is estimated to result in approx. 2.3 million premature deaths and 91 million lost disability-adjusted life years annually. Interventions attempting to mitigate this burden have had limited success in reducing exposures to levels thought to provide substantive health benefits. Objecti ...
  • Differences in Employment Job Characteristics and WorkRelated Perceptions by Sociodemographic Factors Among Registered Nurses of Diverse RaceEthnicity
    Differences in Employment, Job Characteristics, and Work-Related Perceptions by Sociodemographic Factors Among Registered Nurses of Diverse Race/Ethnicity
    Kwon S ;
    Lee S-J
    2022/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Background: Available research on registered nurses (RNs) indicates that RNs with diverse race/ethnicity are more likely to work in disadvantaged workplaces. Purpose: To examine differences in employment, job characteristics and perceptions about work among RNs by sociodemographic characteristics. Methods: We analyzed data from statewide random sam ...
  • Immigrationrelated stressors and health outcomes among lowwage immigrant hotel workers a pilot study
    Immigration-related stressors and health outcomes among low-wage immigrant hotel workers: a pilot study.
    Li Y ;
    Polick C
    2022/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Background: Immigrants comprise over 40% of the low-wage workforce. They are more likely to be employed in service industries, paid less, and experience more illness and injuries than their native counterparts. Design/objective: The aim of this cross-sectional pilot study was to explore the relationship between immigrant workers' stressors and heal ...
  • The Association Between Oil Spill CleanupRelated Total Hydrocarbon Exposure and Diabetes
    The Association Between Oil Spill Cleanup-Related Total Hydrocarbon Exposure and Diabetes
    Curry MD ;
    Engel LS
    2022/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Background: Although evidence suggests relationships between some crude oil components and glycemic dysregulation, no studies have examined oil spill-related chemical exposures in relation to type 2 diabetes mellitus (DM) risk. This study examined the relationship between total hydrocarbon (THC) exposure among workers involved in the 2010 Deepwater ...
  • COVID19 test positivity by occupation using the Delphi US COVID19 trends and impact survey SeptemberNovember 2020
    COVID-19 test positivity by occupation using the Delphi US COVID-19 trends and impact survey, September-November 2020.
    Cox-Ganser, Jean M. ;
    Groth CP
    2022/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    Background: The potential for work to be a risk factor for coronavirus disease 2019 (COVID-19) was recognized early in the pandemic based on the likelihood of work- related differences in exposures to COVID-19 in different occupations. Due to intense demands of the pandemic, implementation of recommendations to collect information on occupation in ...
    Public Domain
  • Glomerular filtration rate reserve is reduced during mild passive heat stress in healthy young adults
    Glomerular filtration rate reserve is reduced during mild passive heat stress in healthy young adults.
    Baker TB ;
    Chapman CL
    2022/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    We tested the hypothesis that, compared to normothermia, the increase in glomerular filtration rate (GFR) following an oral protein load (defined as the GFR reserve) is attenuated during moderate passive heat stress in young healthy adults. Sixteen participants (5 women; 26 +/- 2 y) completed two experimental visits, heat stress or a normothermic t ...
  • Stand Together Join the National Firefighter Registry 202209
    Stand Together: Join the National Firefighter Registry [2022/09]
    National Institute for Occupational Safety and Health
    2022/09/01 | NIOSH Numbered Publications
    This document has been superseded and the new version can be found https://www.cdc.gov/niosh/docs/2022-148/. This factsheet provides information about the National Firefighter Registry (NFR), the largest existing effort undertaken to understand and reduce cancer among U.S. firefighters. [Description provided by NIOSH]
    Superseded Public Domain
  • Data Bulletin Fatal and Nonfatal Transportation Injuries in the Construction Industry 20112020
    Data Bulletin: Fatal and Nonfatal Transportation Injuries in the Construction Industry, 2011–2020
    Harris, William ;
    Trueblood, Amber B.
    2022/09/01 | CPWR Data Bulletin. Silver Spring, MD: CPWR-The Center for Construction Research and Training, 2022 Sep; :1-7 | National Institute for Occupational Safety and Health (NIOSH)
    This issue examines fatal and nonfatal transportation injuries in the construction industry, as well as crashes and fatalities occurring in construction work zones. KEY FINDINGS: There were 2,600 construction workers fatally injured and 35,000 private wage-and-salary construction workers nonfatally injured in transportation incidents from 2011 to 2 ...
3461 - 3480 / 82972